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    v1.0.30
    OpenPayerBilling CodesHospital Inpatient and Observation Care ServicesSubsequent Hospital Inpatient or Observation Care

    Find policies, billing codes, payers, states, and providers

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    Explore OpenPayer Tools

    • Billing Code LookupSearch CPT, HCPCS, J-codes, DRG, and dental codes by number or procedure name.
    • Billing Code Reimbursement RatesBuild a reimbursement rate report across any mix of billing codes and states, comparing commercial payers against Medicare.
    • Payer Comparison DashboardPick 2-5 payers to compare market share, premium, and membership by region, all at once.
    • Facility Comparison DashboardPick 2-6 hospital facility types (or add a specific hospital) to compare facility count, revenue, net income, and Medicare/Medicaid payer mix by region, all at once.
    • Healthcare Provider & Facility LookupFind hospitals and healthcare facilities by name, taxonomy, facility type, ownership, or state.
    • Health Insurance Payer LookupSearch national health insurance payers and health plans by name and state presence.
    • Provider Taxonomy Code LookupSearch NUCC taxonomy codes by code, specialty, grouping, or classification.
    • CPT Modifier LookupSearch CPT modifiers by code or name — descriptions, when to use them, and payer policy context.
    • Prior Authorization LookupSearch payer prior authorization policies by drug, procedure, or policy name.
    • Timely Filing LookupFind payer timely filing policies: claim deadlines, corrected claim windows, and appeal timeframes.
    • Coverage Criteria LookupSearch payer coverage criteria and medical necessity requirements by drug, procedure, or payer.
    • Payer Contact DirectoryClaims, prior authorization, provider services, and appeals contacts for health insurance payers.
    CPT-99231-SUBSEQUENT-HOSPITAL-INPATIENT-OBSERVATION-CARE-LOW-MDM-25MIN

    CPT 99231: Subsequent Hospital Inpatient or Observation Care, Low Complexity

    CPT-99232-SUBSEQUENT-INPATIENT-OBSERVATION-MODERATE-COMPLEXITY

    CPT 99232: Subsequent Hospital/Inpatient or Observation Care, Moderate Complexity

    CPT-99233-SUBSEQUENT-HOSPITAL-CARE-HIGH-COMPLEXITY

    CPT 99233: Subsequent Hospital/Observation Care, High MDM or 50 Minutes

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.